package com.sky.service.impl;

import com.github.pagehelper.Page;
import com.github.pagehelper.PageHelper;
import com.sky.constant.MessageConstant;
import com.sky.constant.PasswordConstant;
import com.sky.constant.StatusConstant;
import com.sky.context.BaseContext;
import com.sky.dto.EmployeeDTO;
import com.sky.dto.EmployeeLoginDTO;
import com.sky.dto.EmployeePageQueryDTO;
import com.sky.entity.Employee;
import com.sky.exception.AccountLockedException;
import com.sky.exception.AccountNotFoundException;
import com.sky.exception.BaseException;
import com.sky.exception.PasswordErrorException;
import com.sky.mapper.EmployeeMapper;
import com.sky.result.PageResult;
import com.sky.service.EmployeeService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.util.DigestUtils;

import java.time.LocalDateTime;

@Service
@Slf4j
public class EmployeeServiceImpl implements EmployeeService {

    @Autowired
    private EmployeeMapper employeeMapper;

    /**
     * 员工登录
     *
     * @param employeeLoginDTO
     * @return
     */
    public Employee login(EmployeeLoginDTO employeeLoginDTO) {
        String username = employeeLoginDTO.getUsername();
        String password = employeeLoginDTO.getPassword();

        password=DigestUtils.md5DigestAsHex(password.getBytes());
        log.info("密码:{} password:{}",password);
        //1、根据用户名查询数据库中的数据
        Employee employee = employeeMapper.getByUsername(username);

        //2、处理各种异常情况（用户名不存在、密码不对、账号被锁定）
        if (employee == null) {
            //账号不存在
            throw new AccountNotFoundException(MessageConstant.ACCOUNT_NOT_FOUND);
        }

        //密码比对
        // TODO 后期需要进行md5加密，然后再进行比对
        if (!password.equals(employee.getPassword())) {
            //密码错误
            throw new PasswordErrorException(MessageConstant.PASSWORD_ERROR);
        }

        if (employee.getStatus() == StatusConstant.DISABLE) {
            //账号被锁定
            throw new AccountLockedException(MessageConstant.ACCOUNT_LOCKED);
        }

        //3、返回实体对象
        return employee;
    }
    /*
    新增员工
    @param employeeDTO
     */
    @Override
    public void save(EmployeeDTO employeeDTO){
        //1.创建Employee对象
        Employee employee = new Employee();
        //2.将用户录入的信息 封装到Employee对象中
        BeanUtils.copyProperties(employeeDTO,employee);
        //3.手动Employee其它的字段赋值
        employee.setStatus(StatusConstant.ENABLE);

        employee.setPassword(DigestUtils.md5DigestAsHex(PasswordConstant.DEFAULT_PASSWORD.getBytes()));

        employee.setCreateTime(LocalDateTime.now());
        employee.setUpdateTime(LocalDateTime.now());

        employee.setCreateUser(BaseContext.getCurrentId());
        employee.setUpdateUser(BaseContext.getCurrentId());

        //4.将数据传递给mybatis
        employeeMapper.save(employee);

    }
    @Override
    public PageResult pageQuery(EmployeePageQueryDTO employeePageQueryDTO)
    {
        //开启分页
        PageHelper.startPage(employeePageQueryDTO.getPage(),employeePageQueryDTO.getPageSize());

        //执行分页
        Page<Employee> page = employeeMapper.pageQuery(employeePageQueryDTO);

        //想查询哈偶的结果封装到Employee中
        return new PageResult(page.getTotal(),page.getResult());
    }
    /**
     * 员工账号启用禁用
     * @param  status
     * @param  id
     */
   @Override
    public void startAndStop(Integer status,Long id){
       Employee employee=new Employee().builder().id(id).status(status).build();
       employeeMapper.startAndStop(employee);
   }
   @Override
    public Employee getById(Long id){
       Employee employee=employeeMapper.getById(id);
       return employee;
   }
   @Override
    public void update(EmployeeDTO employeeDTO){
       Employee employee=new Employee();
       //拷贝数据到employee
       BeanUtils.copyProperties(employeeDTO,employee);
       employee.setCreateTime(LocalDateTime.now());
       employee.setUpdateUser(BaseContext.getCurrentId());
       employeeMapper.update(employee);
   }


}
